Academician hekebin: "new ideas on prevention and control of air pollution during the 14th five year plan -- to achieve the standard by region and stage"

    It is expected to achieve the goal of "continuous improvement of air quality in five stages" through the "fourteenth period". He Kebin, deputy director of the National Joint Center for the prevention and control of air pollution and academician of the Chinese Academy of engineering, said at the air governance seminar jointly sponsored by the energy foundation and the publicity and education center of the Ministry of ecological environment recently that China's air pollution problem has not been completely solved, and pollution prevention has just taken the first step, so there is still a long way to go.

    During the fourteenth Five Year Plan period, China's air pollution prevention and control is expected to achieve the overall continuous improvement of air quality through the method of "reaching the standard by regions and stages".

    He Kebin, deputy director of the National Joint Center for the prevention and control of air pollution and academician of the Chinese Academy of engineering, said at the air governance seminar jointly sponsored by the energy foundation and the publicity and education center of the Ministry of ecological environment recently that China's air pollution problem has not been completely solved, and pollution prevention has just taken the first step, so there is still a long way to go.

    He Kebin said that since 2013, China's air pollution prevention and control has achieved remarkable results, sulfur dioxide (SO2) and acid rain and other coal-fired related pollution have improved significantly, the emission of major air pollutants has decreased significantly, and the total coal consumption has reached an inflection point.

    The monitoring data show that in 2019, the average concentration of fine particulate matter (PM2.5) in 261 cities at prefecture level and above is 40 μ g / m3, which is 23.1% lower than that in 2015, and the 13th five year plan target has been completed ahead of schedule; the concentrations of inhalable particulate matter (PM10) and SO2 in 337 cities at prefecture level and above are 19% and 52% lower than that in 2015, respectively, and the concentration of nitrogen dioxide (NO2) is the same; Ozone (O3) concentration increased by 21%, with a significant increase; among 337 cities at prefecture level and above, 157 (47%) met the air quality standards, an increase of 84 compared with 2015.

    Satellite remote sensing observation results also confirmed the improvement of air quality: from 2013 to 2017, the national population weighted PM2.5 exposure level decreased from 67 μ g / m3 to 45 μ g / m3, a decrease of 32%, reducing the premature death caused by long-term PM2.5 exposure of nearly 200000 people.

    He Kebin said that the pollution in key areas has been controlled to a certain extent, and the heavy pollution in autumn and winter has decreased significantly. The average concentration of PM2.5 in Beijing Tianjin Hebei and its surrounding areas, Yangtze River Delta and Fen Wei plain decreased by 26.9%, 19.6% and 1.8% respectively, and the peak concentration, pollution intensity, duration and influence scope of heavy pollution process decreased significantly.

    At the same time, the overall situation of atmospheric environment in China is still grim, and the regional compound pollution is prominent.

    For example, he Kebin said that the gap between China's PM2.5 concentration and the level of developed countries and the guidance value of the World Health Organization (who) is still obvious, ozone shows a rising trend, and regional air pollution is still prominent. The concentration of PM2.5 in Beijing Tianjin Hebei and its surrounding areas, Fenwei plain and Yangtze River delta still exceeded the standard by 62.6%, 57.1% and 17.1% respectively. In addition, heavy pollution still occurs frequently in autumn and winter in China. The concentration of PM2.5 in key areas in autumn and winter is 1.6 to 2.1 times of that in spring and summer, and the days of heavy pollution account for more than 90% of the whole year.

    He Kebin told reporters that novel coronavirus pneumonia and multiple factors were facing challenges in the 14th Five-Year. The new requirements include the impact of uncertain factors such as the new crown pneumonia epidemic and financial risks, the requirements of multi-objective collaborative control, the possible slowdown in industrial and energy structure adjustment, and the pressure to reduce air pollutants.

    "How to break the existing pattern of interests and promote structural adjustment; how to tap the potential to further strengthen and coordinate key pollutants and key emission reduction measures; how to scientifically choose emission reduction path under more complex boundary conditions; how to promote the establishment of efficient management system, improve management ability and form joint forces are the key problems to be solved at present." He Kebin said.

    On the issue of how to strengthen the prevention and control of air pollution during the 14th Five Year Plan period, he Kebin believes that in the target design, we should link up the 13th five year plan and face the construction goal of "beautiful China". At the same time, we should pay attention to the landmark indicators reflecting the improvement of air quality, and design indicators reflecting local characteristics, so as to realize the combination of unity and differentiation. It should not only meet the requirements of the proportion of PM2.5 concentration decline and the proportion of good days in cities at prefecture level and above, but also reflect the requirements of continuous improvement as a whole and higher goals in key areas.

    He Kebin told reporters that during the "fourteenth five year plan" period, the initial consideration of PM2.5 control target is to "achieve the target by regions and stages", and the regional differences will be further highlighted. The state will formulate a positive and steady air quality improvement target, and reasonably decompose it to all parts of the country.

    In terms of specific policies and measures, he Kebin said that in the future, China will continue to implement effective air pollution prevention and control policies and measures, including comprehensive layout, precise implementation, precise prevention and control, and strict supervision. We will steadily improve air quality in Beijing Tianjin Hebei and its surrounding areas, the Yangtze River Delta and the Pearl River Delta, and further implement pollution prevention and control in Sichuan Chongqing region, Fenwei region and the Yangtze River economic belt. We should control the total amount of coal and strengthen the substitution of clean fuels. Implement peak shifting production based on environmental performance. We will optimize the transportation structure of railway road water transportation, promote new energy vehicles, launch the national "clean diesel action plan", implement special emission limits, and implement emission reduction actions of volatile organic compounds (VOCs) in key industries.